Service bulletin T-TT-0552-19 Rev
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10177779 |
| Published by NHTSA | 2020-08-03 |
| Manufacturer's number | T-TT-0552-19 Rev |
| Manufacturer's date | 2020-06-23 |
| NHTSA component | ENGINE AND ENGINE COOLING |
NHTSA's summary
TT: Repairing a 1234YF HVAC system on a gas powered (non-hybrid) Toyota vehicle may require additional compressor oil to complete the repairs. The various 1234YF compressor oils (ND-12, PS-D1, or VC100YF) are available through the Toyota Approved Dealer Equipment website.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine
| TOYOTA AVALON | 2019, 2020, 2021 |
|---|---|
| TOYOTA C-HR | 2017 |
| TOYOTA C-HR | 2018, 2019, 2020, 2021 |
| TOYOTA CAMRY | 2018, 2019, 2020, 2021 |
| TOYOTA COROLLA | 2019, 2020, 2021 |
| TOYOTA COROLLA HATCHBACK | 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| TOYOTA HIGHLANDER | 2020, 2021 |
| TOYOTA RAV4 | 2019, 2020, 2021 |
| TOYOTA TACOMA | 2016, 2017, 2018, 2019, 2020, 2021 |
| TOYOTA TUNDRA | 2018, 2019, 2020, 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 20V162000 | 2020-03-19. ENGINE; FUEL SYSTEM, GASOLINE:DELIVERY |
|---|---|
| 2020039 | 2020-02-06. Engine |
| 20V064000 | 2020-02-06. ENGINE AND ENGINE COOLING |
| 2018148 | 2018-03-28. Engine |
| 18V200000 | 2018-03-28. ENGINE AND ENGINE COOLING:ENGINE |
| 17V356000 | 2017-06-01. ENGINE |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| T-SB-0110-20 Rev2 | 2026-09-09. Service bulletin. OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26. |
|---|---|
| T-SB-0051-26 | 2026-09-09. Service bulletin. This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries. |
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| 26TE06 | 2026-08-12. Service campaign. Although the Continuously Variable Transmissions (CVT) is covered by Toyota’s New Vehicle Limited Warranty for 5 years or 60,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing coverage for repairs related to an abnormal whine noise in the CVT. |
| T-SB-0023-26 | 2026-05-08. Service bulletin. Some customers may experience a rough running engine with a MIL ON P140018 DTC. Upon further inspection, a loose C90/C27 connector pin at the EGR valve may be found. To correct this concern, please reference the repair section of this TSB. |
| T-SB-0104-21 Rev2 | 2026-03-07. Service bulletin. OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete. |
| T-SB-0089-25 | 2026-01-09. Service bulletin. Some 2021 – 2025 model year RAV4 Plug-in Hybrid and RAV4 Prime vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P019064 (Fuel Rail Pressure Sensor “A” Signal Plausibility Failure) present. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to address this condition. |
| 22TC07 | 2025-12-05. Other. Owner Renotification Letter Due to certain programing in the engine ECU, under certain conditions, the vehicle may stall at low speeds when accelerating from a stop. If this low-speed vehicle stall occurs, steering and braking are not impacted, and the vehicle can be restarted immediately. |
| 22TC07 | 2025-12-05. Other. Owner Renotification Letter Due to certain programing in the engine ECU, under certain conditions, the vehicle may stall at low speeds when accelerating from a stop. If this low-speed vehicle stall occurs, steering and braking are not impacted, and the vehicle can be restarted immediately. |
| T-SB-0088-23 Rev2 | 2025-09-09. Service bulletin. OBSOLETE NOTICE August 19, 2025: This bulletin is now obsolete. Please see T-SB-0059-25. |